Tritium-Helium Dating in the Sargasso Sea: A Measurement of Oxygen Utilization Rates

Science  15 Apr 1977:
Vol. 196, Issue 4287, pp. 291-292
DOI: 10.1126/science.196.4287.291


The newly developed technique of "tritium-helium dating" has been used to investigate in situ rates of oceanic oxygen utilization. As an example, an apparent oxygen utilization rate of 0.20 ± 0.02 milliliter per liter of water per year has been obtained for the Subtropical Mode water (18°C water) in the Sargasso Sea.